HVAC air flow mixing system and method of use
OwnerGustavo Pugainventor
Life of this patent
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Abstract
An HVAC air flow mixing system includes a reclaimed air loop having a duct tee configured to fluidly intersect an HVAC duct downstream of an indoor heat exchanger and a pipe in fluid communication with the duct tee and configured to fluidly communicate with the indoor unit so as to selectively reintroduce a portion of the discharged air back to the indoor unit upstream of the indoor heat exchanger.
Claims21
An HVAC air flow mixing system for operation in conjunction with an indoor unit having an indoor heat exchanger fluidly connected to a first conduit and oppositely to a second conduit with a refrigerant selectively flowing therethrough, the indoor unit discharging air that has passed over the indoor heat exchanger into a duct, the indoor unit having a length in the air flow direction, the system comprising:
- a reclaimed air loop having a duct tee configured to fluidly intersect the duct downstream of the indoor heat exchanger, the reclaimed air loop further having a pipe in fluid communication with the duct tee and configured to fluidly communicate with the indoor unit so as to selectively reintroduce a portion of the discharged air back to the indoor unit upstream of the indoor heat exchanger;
- wherein the duct has a duct maximum transverse dimension defined adjacent to the indoor unit and further wherein the duct tee is configured to be located along the duct within a distance from the indoor unit that is no more than three times the duct maximum transverse dimension;
- wherein the reclaimed air loop is no longer than double the length of the indoor unit;
- and
- wherein in use up to approximately twenty-five percent (25%) of the discharged air is diverted and reintroduced to the indoor unit via the reclaimed air loop.
An HVAC system comprising:
- an indoor unit having an indoor heat exchanger fluidly connected to a first conduit and oppositely to a second conduit with a refrigerant selectively flowing therethrough, the indoor unit discharging air that has passed over the indoor heat exchanger into a duct, the indoor unit having a length in the air flow direction;
- an outdoor unit having an outdoor heat exchanger fluidly connected to the first and second conduits;
- and
- a reclaimed air loop having a duct tee fluidly intersecting the duct downstream of the indoor heat exchanger and a pipe in fluid communication with the duct tee and fluidly communicating with the indoor unit so as to selectively reintroduce a portion of the discharged air back to the indoor unit upstream of the indoor heat exchanger;
- wherein the duct has a duct maximum transverse dimension defined adjacent to the indoor unit and further wherein the duct tee is located along the duct within a distance from the indoor unit that is no more than three times the duct maximum transverse dimension;
- wherein the reclaimed air loop is no longer than double the length of the indoor unit;
- and
- wherein in use up to approximately twenty-five percent (25%) of the discharged air is diverted and reintroduced to the indoor unit via the reclaimed air loop.
An HVAC air flow mixing system for operation in conjunction with an indoor unit having an indoor heat exchanger fluidly connected to a first conduit and oppositely to a second conduit with a refrigerant selectively flowing therethrough, the indoor unit discharging air that has passed over the indoor heat exchanger into a duct, the indoor unit having a length in the air flow direction, the system comprising:
- a reclaimed air loop having a duct tee configured to fluidly intersect the duct downstream of the indoor heat exchanger, the reclaimed air loop further having a pipe in fluid communication with the duct tee and configured to fluidly communicate with the indoor unit so as to selectively reintroduce a portion of the discharged air back to the indoor unit upstream of the indoor heat exchanger;
- wherein the reclaimed air loop is no longer than double the length of the indoor unit;
- and
- wherein in use up to approximately twenty-five percent (25%) of the discharged air is diverted and reintroduced to the indoor unit via the reclaimed air loop.
An HVAC air flow mixing system for operation in conjunction with an indoor unit having an indoor heat exchanger fluidly connected to a first conduit and oppositely to a second conduit with a refrigerant selectively flowing therethrough, the indoor unit discharging air that has passed over the indoor heat exchanger into a duct, the indoor unit having a length in the air flow direction, the system comprising:
- a reclaimed air loop having a duct tee configured to fluidly intersect the duct downstream of the indoor heat exchanger, the reclaimed air loop further having a pipe in fluid communication with the duct tee and configured to fluidly communicate with the indoor unit so as to selectively reintroduce a portion of the discharged air back to the indoor unit upstream of the indoor heat exchanger;
- wherein the duct has a duct cross-sectional area, and the pipe has a pipe cross-sectional area that is up to twenty-five percent (25%) of the duct cross-sectional area;
- wherein the duct tee is configured to be located along the duct prior to any other branching;
- and
- wherein in use up to approximately twenty-five percent (25%) of the discharged air is diverted and reintroduced to the indoor unit via the reclaimed air loop.
Dependencies are inferred from the claim text.